Endless belt power transmission systems or components – Friction drive belt – Including particular means connecting opposite ends to form...
Patent
1995-06-13
1996-11-12
Schoeppel, Roger J.
Endless belt power transmission systems or components
Friction drive belt
Including particular means connecting opposite ends to form...
474257, 1988442, F16G 300
Patent
active
055734707
DESCRIPTION:
BRIEF SUMMARY
The present invention is related to a joining device for conveyor belt, which is flexible resistant and which can be set quickly into position, as well as to fastening methods.
Conveyor belts, made generally with a flexible and tensile material, including most often a carrier reinforcement, said material being a synthetic and possibly natural rubber, or a synthetic material such as polyurethan or other synthetic materials having flexibility and strenght properties allied to a certain elasticity, are well known. These conveyor belts, mounted on a driving roller and on an idle roller, possibly supported along their track or guide rollers or supporting rollers, are used for carrying coal, minerals, industrial products in scraps or in powder, and even for carrying singled articles, such as cardboad or wood boxes, luggage etc. This listing is far from being exhaustive, since the fields of application of the conveyor belts are diversified, and new ones appeared permanently.
It is the reason why, the dimension, the strength and the constituent material of the conveyor belts vary within large limits.
Two methods of joining are known heretofore. The first one consists in sticking the ends of the conveyor belt or to assemble them by vulcanisation. The ends of the conveyor belt are prepared in view of these operations in such a way as the surfaces to be stuck or vulcanised together are cut out accurately and stepwise and ready for these sticking or vulcanisation operations. These sticking or vulcanisation operations are time-consuming, and the conveyor belt could be out of service for as long as 24 hours. They present the advantage of keeping quite completely the flexibility and the elasticity of the conveyor belt in the joining area. They are often carried out with difficulty, for instance in quarries or building works or in areas adjacent to the working face, in mines, due to the prevailing conditions (space limitation, dust, explosion risks, etc.) and to the difficulty encountered for preparing correctly the surface under such conditions.
The second method consists in using metallic staples or clamps or metallic staple small bars or strips, U-shaped, arranged on the ends of the conveyor belt fastened on these latter by means of studs or of rivets, mounted close to each other and mutually interleaving, a linking or hinging rod passing through the interleaving staples to form a hinged joining device between the ends of the conveyor belt linked together in that way. These devices have proved satisfactory due especially to the fast implementation of the joining, but they are very quickly worn out and must be frequently replaced, very often under emergency conditions, due to the wear of the linking and hinging rod, and even to the stripping of at least some of the staples. These problems result mainly from the unavoidable stiffness of these metallic staples and to the wear of the linking and hinging rods, produced by the relative rotative movements of the staples and of the linking and hinging rod caused by the movement of the conveyor belt itself.
The object of the present invention is to provide a novel joining device which keeps the flexibility and elasticity advantages of the joinings obtained by direct sticking or vulcanisation of the conveyor belt ends, but the implementation of which is much more easy, especially in the aggressive environmental conditions (mines, works) and mainly much more fast than the direct sticking and vulcanisation methods, while being at least equally wear resistant and liable.
The problem as such is solved by means of joining devices of a generally H-shaped profile, the central part of which, forming the central H bar is extended by two opposite pairs of arms forming the H branches, the said arms having a longitudinal extension, several times more important than the biggest dimension of the central part which forms the H bar of the device in cross-section view, the said central part as well as the arms, being made of a flexible and resilient material, the flexibility and the elasticity o
REFERENCES:
patent: 752512 (1904-02-01), Buckley
patent: 2446311 (1948-08-01), Traxler
patent: 2449950 (1948-09-01), Nassimbene
patent: 3084408 (1963-04-01), Ireland
patent: 3279090 (1966-10-01), Harper
patent: 3839766 (1974-10-01), Kenney
patent: 4315349 (1982-02-01), Stolz
patent: 5419744 (1995-05-01), Kagebeck
ASER
Schoeppel Roger J.
LandOfFree
Joining device for conveyor belts and method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Joining device for conveyor belts and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Joining device for conveyor belts and method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-558698